A new triterpenoid glycoside from Vitex negundo / 中国天然药物

ABSTRACT

AIM@#To investigate the chemical constituents of Vitex negundo.@*METHOD@#Compounds were isolated by different chromatographic methods and their structures were elucidated on the basis of NMR spectroscopy.@*RESULTS@#Four compounds were isolated and identified as 2α, 3α, 24-trihydroxyurs-12, 20(30)-dien-28-oic acid-28-O-β-D-glucopyranosyl ester (1), corosolic acid (2), vulgarsaponin A (3) and 2α, 3α, 24-trihydroxyurs-12-en-28-oic acid-28-O-β-Dglucopyranosyl ester (4), respectively.@*CONCLUSION@#Compound 1 is a new triterpenoid glycoside.